{"items":[{"id":"NVI-00007322","kind":"vulnerability","title":"Cross-Site Scripting in CKEditor4 WordCount Plugin","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m8fw-p3cr-6jqc"],"plain_summary":"OSV carries this publisher advisory for typo3/cms-rte-ckeditor, typo3/cms-rte-ckeditor, typo3/cms-rte-ckeditor. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 9.5.42 for typo3/cms-rte-ckeditor. Confirm the publisher’s latest guidance.","source_ids":["sr-d769223739caff3bf15b05c5fcdd22c5"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 10.4.39 for typo3/cms-rte-ckeditor. Confirm the publisher’s latest guidance.","source_ids":["sr-d769223739caff3bf15b05c5fcdd22c5"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 11.5.30 for typo3/cms-rte-ckeditor. Confirm the publisher’s latest guidance.","source_ids":["sr-d769223739caff3bf15b05c5fcdd22c5"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-d769223739caff3bf15b05c5fcdd22c5","url":"https://github.com/advisories/GHSA-m8fw-p3cr-6jqc","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-m8fw-p3cr-6jqc","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.976Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d769223739caff3bf15b05c5fcdd22c5"],"technology":"typo3/cms-rte-ckeditor","known_exclusions":[],"conditions_summary":"> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (4.4) \n\n### Problem\nThe WordCount plugin (`npm:ckeditor-wordcount-plugin`) for CKEditor4 is vulnerable to cross-site scripting when switching to the source code mode. This plugin is enabled via the `Full.yaml` configuration present, but is not active in the default configuration.\n\nIn default scenarios, exploiting this vulnerability requires a valid backend user account. However, if custom plugins are used on the website frontend, which accept and reflect rich-text content submitted by users, no authentication is required.\n\n### Solution\nUpdate to TYPO3 versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30 that fix the problem described above.\n\n### Credits\nThanks to Sybille Peters who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue.\n\n### References\n* TYPO3-CORE-SA-2023-004\n* https://github.com/w8tcha/CKEditor-WordCount-Plugin/security/advisories/GHSA-q9w4-w667-qqj4","public_affected_ranges":["ECOSYSTEM: introduced 9.5.0; fixed 9.5.42"]},{"certainty":"source_listed","source_ids":["sr-d769223739caff3bf15b05c5fcdd22c5"],"technology":"typo3/cms-rte-ckeditor","known_exclusions":[],"conditions_summary":"> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (4.4) \n\n### Problem\nThe WordCount plugin (`npm:ckeditor-wordcount-plugin`) for CKEditor4 is vulnerable to cross-site scripting when switching to the source code mode. This plugin is enabled via the `Full.yaml` configuration present, but is not active in the default configuration.\n\nIn default scenarios, exploiting this vulnerability requires a valid backend user account. However, if custom plugins are used on the website frontend, which accept and reflect rich-text content submitted by users, no authentication is required.\n\n### Solution\nUpdate to TYPO3 versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30 that fix the problem described above.\n\n### Credits\nThanks to Sybille Peters who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue.\n\n### References\n* TYPO3-CORE-SA-2023-004\n* https://github.com/w8tcha/CKEditor-WordCount-Plugin/security/advisories/GHSA-q9w4-w667-qqj4","public_affected_ranges":["ECOSYSTEM: introduced 10.0.0; fixed 10.4.39"]},{"certainty":"source_listed","source_ids":["sr-d769223739caff3bf15b05c5fcdd22c5"],"technology":"typo3/cms-rte-ckeditor","known_exclusions":[],"conditions_summary":"> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (4.4) \n\n### Problem\nThe WordCount plugin (`npm:ckeditor-wordcount-plugin`) for CKEditor4 is vulnerable to cross-site scripting when switching to the source code mode. This plugin is enabled via the `Full.yaml` configuration present, but is not active in the default configuration.\n\nIn default scenarios, exploiting this vulnerability requires a valid backend user account. However, if custom plugins are used on the website frontend, which accept and reflect rich-text content submitted by users, no authentication is required.\n\n### Solution\nUpdate to TYPO3 versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30 that fix the problem described above.\n\n### Credits\nThanks to Sybille Peters who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue.\n\n### References\n* TYPO3-CORE-SA-2023-004\n* https://github.com/w8tcha/CKEditor-WordCount-Plugin/security/advisories/GHSA-q9w4-w667-qqj4","public_affected_ranges":["ECOSYSTEM: introduced 11.0.0; fixed 11.5.30"]}],"null_published_at":"2026-10-31T22:13:14.330Z","source_updated_at":"2026-02-04T04:27:36.085Z","source_disclosed_at":"2023-07-25T19:11:43.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:30.976Z"}],"next_cursor":null,"snapshot_revision":"42594"}